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I thought ruff check would also format, but it doesn't. This runs ruff format in CI and dev scripts. The first commit is just a run of `ruff format .` in the root directory.
617 lines
24 KiB
Python
617 lines
24 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2021 The Matrix.org Foundation C.I.C.
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# Copyright 2016 OpenMarket Ltd
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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import argparse
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import logging
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from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union
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import attr
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from synapse._pydantic_compat import HAS_PYDANTIC_V2
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if TYPE_CHECKING or HAS_PYDANTIC_V2:
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from pydantic.v1 import BaseModel, Extra, StrictBool, StrictInt, StrictStr
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else:
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from pydantic import BaseModel, Extra, StrictBool, StrictInt, StrictStr
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from synapse.config._base import (
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Config,
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ConfigError,
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RoutableShardedWorkerHandlingConfig,
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ShardedWorkerHandlingConfig,
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)
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from synapse.config._util import parse_and_validate_mapping
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from synapse.config.server import (
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DIRECT_TCP_ERROR,
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TCPListenerConfig,
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parse_listener_def,
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)
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from synapse.types import JsonDict
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_DEPRECATED_WORKER_DUTY_OPTION_USED = """
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The '%s' configuration option is deprecated and will be removed in a future
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Synapse version. Please use ``%s: name_of_worker`` instead.
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"""
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_MISSING_MAIN_PROCESS_INSTANCE_MAP_DATA = """
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Missing data for a worker to connect to main process. Please include '%s' in the
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`instance_map` declared in your shared yaml configuration as defined in configuration
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documentation here:
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`https://element-hq.github.io/synapse/latest/usage/configuration/config_documentation.html#instance_map`
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"""
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WORKER_REPLICATION_SETTING_DEPRECATED_MESSAGE = """
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'%s' is no longer a supported worker setting, please place '%s' onto your shared
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configuration under `main` inside the `instance_map`. See workers documentation here:
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`https://element-hq.github.io/synapse/latest/workers.html#worker-configuration`
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"""
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# This allows for a handy knob when it's time to change from 'master' to
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# something with less 'history'
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MAIN_PROCESS_INSTANCE_NAME = "master"
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# Use this to adjust what the main process is known as in the yaml instance_map
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MAIN_PROCESS_INSTANCE_MAP_NAME = "main"
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logger = logging.getLogger(__name__)
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def _instance_to_list_converter(obj: Union[str, List[str]]) -> List[str]:
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"""Helper for allowing parsing a string or list of strings to a config
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option expecting a list of strings.
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"""
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if isinstance(obj, str):
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return [obj]
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return obj
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class ConfigModel(BaseModel):
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"""A custom version of Pydantic's BaseModel which
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- ignores unknown fields and
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- does not allow fields to be overwritten after construction,
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but otherwise uses Pydantic's default behaviour.
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For now, ignore unknown fields. In the future, we could change this so that unknown
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config values cause a ValidationError, provided the error messages are meaningful to
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server operators.
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Subclassing in this way is recommended by
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https://pydantic-docs.helpmanual.io/usage/model_config/#change-behaviour-globally
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"""
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class Config:
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# By default, ignore fields that we don't recognise.
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extra = Extra.ignore
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# By default, don't allow fields to be reassigned after parsing.
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allow_mutation = False
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class InstanceTcpLocationConfig(ConfigModel):
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"""The host and port to talk to an instance via HTTP replication."""
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host: StrictStr
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port: StrictInt
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tls: StrictBool = False
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def scheme(self) -> str:
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"""Hardcode a retrievable scheme based on self.tls"""
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return "https" if self.tls else "http"
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def netloc(self) -> str:
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"""Nicely format the network location data"""
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return f"{self.host}:{self.port}"
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class InstanceUnixLocationConfig(ConfigModel):
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"""The socket file to talk to an instance via HTTP replication."""
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path: StrictStr
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def scheme(self) -> str:
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"""Hardcode a retrievable scheme"""
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return "unix"
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def netloc(self) -> str:
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"""Nicely format the address location data"""
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return f"{self.path}"
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InstanceLocationConfig = Union[InstanceTcpLocationConfig, InstanceUnixLocationConfig]
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@attr.s
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class WriterLocations:
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"""Specifies the instances that write various streams.
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Attributes:
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events: The instances that write to the event and backfill streams.
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typing: The instances that write to the typing stream. Currently
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can only be a single instance.
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to_device: The instances that write to the to_device stream. Currently
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can only be a single instance.
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account_data: The instances that write to the account data streams. Currently
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can only be a single instance.
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receipts: The instances that write to the receipts stream. Currently
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can only be a single instance.
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presence: The instances that write to the presence stream. Currently
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can only be a single instance.
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push_rules: The instances that write to the push stream. Currently
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can only be a single instance.
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"""
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events: List[str] = attr.ib(
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default=["master"],
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converter=_instance_to_list_converter,
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)
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typing: List[str] = attr.ib(
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default=["master"],
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converter=_instance_to_list_converter,
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)
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to_device: List[str] = attr.ib(
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default=["master"],
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converter=_instance_to_list_converter,
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)
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account_data: List[str] = attr.ib(
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default=["master"],
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converter=_instance_to_list_converter,
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)
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receipts: List[str] = attr.ib(
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default=["master"],
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converter=_instance_to_list_converter,
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)
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presence: List[str] = attr.ib(
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default=["master"],
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converter=_instance_to_list_converter,
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)
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push_rules: List[str] = attr.ib(
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default=["master"],
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converter=_instance_to_list_converter,
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)
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@attr.s(auto_attribs=True)
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class OutboundFederationRestrictedTo:
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"""Whether we limit outbound federation to a certain set of instances.
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Attributes:
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instances: optional list of instances that can make outbound federation
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requests. If None then all instances can make federation requests.
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locations: list of instance locations to connect to proxy via.
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"""
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instances: Optional[List[str]]
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locations: List[InstanceLocationConfig] = attr.Factory(list)
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def __contains__(self, instance: str) -> bool:
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# It feels a bit dirty to return `True` if `instances` is `None`, but it makes
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# sense in downstream usage in the sense that if
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# `outbound_federation_restricted_to` is not configured, then any instance can
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# talk to federation (no restrictions so always return `True`).
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return self.instances is None or instance in self.instances
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class WorkerConfig(Config):
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"""The workers are processes run separately to the main synapse process.
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They have their own pid_file and listener configuration. They use the
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replication_url to talk to the main synapse process."""
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section = "worker"
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def read_config(self, config: JsonDict, **kwargs: Any) -> None:
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self.worker_app = config.get("worker_app")
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# Canonicalise worker_app so that master always has None
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if self.worker_app == "synapse.app.homeserver":
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self.worker_app = None
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self.worker_listeners = [
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parse_listener_def(i, x)
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for i, x in enumerate(config.get("worker_listeners", []))
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]
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self.worker_daemonize = bool(config.get("worker_daemonize"))
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self.worker_pid_file = config.get("worker_pid_file")
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worker_log_config = config.get("worker_log_config")
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if worker_log_config is not None and not isinstance(worker_log_config, str):
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raise ConfigError("worker_log_config must be a string")
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self.worker_log_config = worker_log_config
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# The port on the main synapse for TCP replication
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if "worker_replication_port" in config:
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raise ConfigError(DIRECT_TCP_ERROR, ("worker_replication_port",))
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# The shared secret used for authentication when connecting to the main synapse.
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self.worker_replication_secret = config.get("worker_replication_secret", None)
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self.worker_name = config.get("worker_name", self.worker_app)
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self.instance_name = self.worker_name or MAIN_PROCESS_INSTANCE_NAME
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# FIXME: Remove this check after a suitable amount of time.
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self.worker_main_http_uri = config.get("worker_main_http_uri", None)
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if self.worker_main_http_uri is not None:
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logger.warning(
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"The config option worker_main_http_uri is unused since Synapse 1.73. "
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"It can be safely removed from your configuration."
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)
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# This option is really only here to support `--manhole` command line
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# argument.
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manhole = config.get("worker_manhole")
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if manhole:
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self.worker_listeners.append(
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TCPListenerConfig(
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port=manhole,
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bind_addresses=["127.0.0.1"],
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type="manhole",
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)
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)
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federation_sender_instances = self._worker_names_performing_this_duty(
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config,
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"send_federation",
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"synapse.app.federation_sender",
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"federation_sender_instances",
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)
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self.send_federation = self.instance_name in federation_sender_instances
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self.federation_shard_config = ShardedWorkerHandlingConfig(
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federation_sender_instances
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)
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# A map from instance name to host/port of their HTTP replication endpoint.
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# Check if the main process is declared. The main process itself doesn't need
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# this data as it would never have to talk to itself.
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instance_map: Dict[str, Any] = config.get("instance_map", {})
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if self.instance_name is not MAIN_PROCESS_INSTANCE_NAME:
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# TODO: The next 3 condition blocks can be deleted after some time has
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# passed and we're ready to stop checking for these settings.
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# The host used to connect to the main synapse
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main_host = config.get("worker_replication_host", None)
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if main_host:
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raise ConfigError(
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WORKER_REPLICATION_SETTING_DEPRECATED_MESSAGE
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% ("worker_replication_host", main_host)
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)
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# The port on the main synapse for HTTP replication endpoint
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main_port = config.get("worker_replication_http_port")
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if main_port:
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raise ConfigError(
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WORKER_REPLICATION_SETTING_DEPRECATED_MESSAGE
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% ("worker_replication_http_port", main_port)
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)
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# The tls mode on the main synapse for HTTP replication endpoint.
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# For backward compatibility this defaults to False.
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main_tls = config.get("worker_replication_http_tls", False)
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if main_tls:
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raise ConfigError(
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WORKER_REPLICATION_SETTING_DEPRECATED_MESSAGE
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% ("worker_replication_http_tls", main_tls)
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)
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# For now, accept 'main' in the instance_map, but the replication system
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# expects 'master', force that into being until it's changed later.
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if MAIN_PROCESS_INSTANCE_MAP_NAME in instance_map:
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instance_map[MAIN_PROCESS_INSTANCE_NAME] = instance_map[
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MAIN_PROCESS_INSTANCE_MAP_NAME
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]
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del instance_map[MAIN_PROCESS_INSTANCE_MAP_NAME]
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else:
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# If we've gotten here, it means that the main process is not on the
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# instance_map.
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raise ConfigError(
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_MISSING_MAIN_PROCESS_INSTANCE_MAP_DATA
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% MAIN_PROCESS_INSTANCE_MAP_NAME
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)
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# type-ignore: the expression `Union[A, B]` is not a Type[Union[A, B]] currently
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self.instance_map: Dict[str, InstanceLocationConfig] = (
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parse_and_validate_mapping(
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instance_map,
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InstanceLocationConfig, # type: ignore[arg-type]
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)
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)
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# Map from type of streams to source, c.f. WriterLocations.
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writers = config.get("stream_writers") or {}
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self.writers = WriterLocations(**writers)
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# Check that the configured writers for events and typing also appears in
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# `instance_map`.
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for stream in (
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"events",
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"typing",
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"to_device",
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"account_data",
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"receipts",
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"presence",
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"push_rules",
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):
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instances = _instance_to_list_converter(getattr(self.writers, stream))
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for instance in instances:
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if instance != "master" and instance not in self.instance_map:
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raise ConfigError(
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"Instance %r is configured to write %s but does not appear in `instance_map` config."
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% (instance, stream)
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)
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if len(self.writers.typing) != 1:
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raise ConfigError(
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"Must only specify one instance to handle `typing` messages."
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)
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if len(self.writers.to_device) != 1:
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raise ConfigError(
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"Must only specify one instance to handle `to_device` messages."
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)
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if len(self.writers.account_data) != 1:
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raise ConfigError(
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"Must only specify one instance to handle `account_data` messages."
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)
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if len(self.writers.receipts) == 0:
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raise ConfigError(
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"Must specify at least one instance to handle `receipts` messages."
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)
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if len(self.writers.events) == 0:
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raise ConfigError("Must specify at least one instance to handle `events`.")
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if len(self.writers.presence) != 1:
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raise ConfigError(
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"Must only specify one instance to handle `presence` messages."
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)
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if len(self.writers.push_rules) != 1:
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raise ConfigError(
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"Must only specify one instance to handle `push` messages."
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)
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self.events_shard_config = RoutableShardedWorkerHandlingConfig(
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self.writers.events
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)
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# Handle sharded push
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pusher_instances = self._worker_names_performing_this_duty(
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config,
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"start_pushers",
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"synapse.app.pusher",
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"pusher_instances",
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)
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self.start_pushers = self.instance_name in pusher_instances
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self.pusher_shard_config = ShardedWorkerHandlingConfig(pusher_instances)
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# Whether this worker should run background tasks or not.
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#
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# As a note for developers, the background tasks guarded by this should
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# be able to run on only a single instance (meaning that they don't
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# depend on any in-memory state of a particular worker).
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#
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# No effort is made to ensure only a single instance of these tasks is
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# running.
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background_tasks_instance = config.get("run_background_tasks_on") or "master"
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self.run_background_tasks = (
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self.worker_name is None and background_tasks_instance == "master"
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) or self.worker_name == background_tasks_instance
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self.should_notify_appservices = self._should_this_worker_perform_duty(
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config,
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legacy_master_option_name="notify_appservices",
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legacy_worker_app_name="synapse.app.appservice",
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new_option_name="notify_appservices_from_worker",
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)
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self.should_update_user_directory = self._should_this_worker_perform_duty(
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config,
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legacy_master_option_name="update_user_directory",
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legacy_worker_app_name="synapse.app.user_dir",
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new_option_name="update_user_directory_from_worker",
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)
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outbound_federation_restricted_to = config.get(
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"outbound_federation_restricted_to", None
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)
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self.outbound_federation_restricted_to = OutboundFederationRestrictedTo(
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outbound_federation_restricted_to
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)
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if outbound_federation_restricted_to:
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if not self.worker_replication_secret:
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raise ConfigError(
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"`worker_replication_secret` must be configured when using `outbound_federation_restricted_to`."
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)
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for instance in outbound_federation_restricted_to:
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if instance not in self.instance_map:
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raise ConfigError(
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"Instance %r is configured in 'outbound_federation_restricted_to' but does not appear in `instance_map` config."
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% (instance,)
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)
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self.outbound_federation_restricted_to.locations.append(
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self.instance_map[instance]
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)
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def _should_this_worker_perform_duty(
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self,
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config: Dict[str, Any],
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legacy_master_option_name: str,
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legacy_worker_app_name: str,
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new_option_name: str,
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) -> bool:
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"""
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Figures out whether this worker should perform a certain duty.
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This function is temporary and is only to deal with the complexity
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of allowing old, transitional and new configurations all at once.
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Contradictions between the legacy and new part of a transitional configuration
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will lead to a ConfigError.
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Parameters:
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config: The config dictionary
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legacy_master_option_name: The name of a legacy option, whose value is boolean,
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specifying whether it's the master that should handle a certain duty.
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e.g. "notify_appservices"
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legacy_worker_app_name: The name of a legacy Synapse worker application
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that would traditionally perform this duty.
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e.g. "synapse.app.appservice"
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new_option_name: The name of the new option, whose value is the name of a
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designated worker to perform the duty.
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e.g. "notify_appservices_from_worker"
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"""
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# None means 'unspecified'; True means 'run here' and False means
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# 'don't run here'.
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new_option_should_run_here = None
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if new_option_name in config:
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designated_worker = config[new_option_name] or "master"
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new_option_should_run_here = (
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designated_worker == "master" and self.worker_name is None
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) or designated_worker == self.worker_name
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legacy_option_should_run_here = None
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if legacy_master_option_name in config:
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run_on_master = bool(config[legacy_master_option_name])
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|
|
legacy_option_should_run_here = (
|
|
self.worker_name is None and run_on_master
|
|
) or (self.worker_app == legacy_worker_app_name and not run_on_master)
|
|
|
|
# Suggest using the new option instead.
|
|
logger.warning(
|
|
_DEPRECATED_WORKER_DUTY_OPTION_USED,
|
|
legacy_master_option_name,
|
|
new_option_name,
|
|
)
|
|
|
|
if self.worker_app == legacy_worker_app_name and config.get(
|
|
legacy_master_option_name, True
|
|
):
|
|
# As an extra bit of complication, we need to check that the
|
|
# specialised worker is only used if the legacy config says the
|
|
# master isn't performing the duties.
|
|
raise ConfigError(
|
|
f"Cannot use deprecated worker app type '{legacy_worker_app_name}' whilst deprecated option '{legacy_master_option_name}' is not set to false.\n"
|
|
f"Consider setting `worker_app: synapse.app.generic_worker` and using the '{new_option_name}' option instead.\n"
|
|
f"The '{new_option_name}' option replaces '{legacy_master_option_name}'."
|
|
)
|
|
|
|
if new_option_should_run_here is None and legacy_option_should_run_here is None:
|
|
# Neither option specified; the fallback behaviour is to run on the main process
|
|
return self.worker_name is None
|
|
|
|
if (
|
|
new_option_should_run_here is not None
|
|
and legacy_option_should_run_here is not None
|
|
):
|
|
# Both options specified; ensure they match!
|
|
if new_option_should_run_here != legacy_option_should_run_here:
|
|
update_worker_type = (
|
|
" and set worker_app: synapse.app.generic_worker"
|
|
if self.worker_app == legacy_worker_app_name
|
|
else ""
|
|
)
|
|
# If the values conflict, we suggest the admin removes the legacy option
|
|
# for simplicity.
|
|
raise ConfigError(
|
|
f"Conflicting configuration options: {legacy_master_option_name} (legacy), {new_option_name} (new).\n"
|
|
f"Suggestion: remove {legacy_master_option_name}{update_worker_type}.\n"
|
|
)
|
|
|
|
# We've already validated that these aren't conflicting; now just see if
|
|
# either is True.
|
|
# (By this point, these are either the same value or only one is not None.)
|
|
return bool(new_option_should_run_here or legacy_option_should_run_here)
|
|
|
|
def _worker_names_performing_this_duty(
|
|
self,
|
|
config: Dict[str, Any],
|
|
legacy_option_name: str,
|
|
legacy_app_name: str,
|
|
modern_instance_list_name: str,
|
|
) -> List[str]:
|
|
"""
|
|
Retrieves the names of the workers handling a given duty, by either legacy
|
|
option or instance list.
|
|
|
|
There are two ways of configuring which instances handle a given duty, e.g.
|
|
for configuring pushers:
|
|
|
|
1. The old way where "start_pushers" is set to false and running a
|
|
`synapse.app.pusher'` worker app.
|
|
2. Specifying the workers sending federation in `pusher_instances`.
|
|
|
|
Args:
|
|
config: settings read from yaml.
|
|
legacy_option_name: the old way of enabling options. e.g. 'start_pushers'
|
|
legacy_app_name: The historical app name. e.g. 'synapse.app.pusher'
|
|
modern_instance_list_name: the string name of the new instance_list. e.g.
|
|
'pusher_instances'
|
|
|
|
Returns:
|
|
A list of worker instance names handling the given duty.
|
|
"""
|
|
|
|
legacy_option = config.get(legacy_option_name, True)
|
|
|
|
worker_instances = config.get(modern_instance_list_name)
|
|
if worker_instances is None:
|
|
# Default to an empty list, which means "another, unknown, worker is
|
|
# responsible for it".
|
|
worker_instances = []
|
|
|
|
# If no worker instances are set we check if the legacy option
|
|
# is set, which means use the main process.
|
|
if legacy_option:
|
|
worker_instances = ["master"]
|
|
|
|
if self.worker_app == legacy_app_name:
|
|
if legacy_option:
|
|
# If we're using `legacy_app_name`, and not using
|
|
# `modern_instance_list_name`, then we should have
|
|
# explicitly set `legacy_option_name` to false.
|
|
raise ConfigError(
|
|
f"The '{legacy_option_name}' config option must be disabled in "
|
|
"the main synapse process before they can be run in a separate "
|
|
"worker.\n"
|
|
f"Please add `{legacy_option_name}: false` to the main config.\n",
|
|
)
|
|
|
|
worker_instances = [self.worker_name]
|
|
|
|
return worker_instances
|
|
|
|
def read_arguments(self, args: argparse.Namespace) -> None:
|
|
# We support a bunch of command line arguments that override options in
|
|
# the config. A lot of these options have a worker_* prefix when running
|
|
# on workers so we also have to override them when command line options
|
|
# are specified.
|
|
|
|
if args.daemonize is not None:
|
|
self.worker_daemonize = args.daemonize
|
|
if args.manhole is not None:
|
|
self.worker_manhole = args.worker_manhole
|